Classification
900 - History & geography
69
100 - Philosophy & psychology
30
410 - Linguistics
25
780 - Music
22
700 - The arts; fine & decorative arts
19
791 - Public performances
14
398 - Folklore
8
800 - Literature & rhetoric
4
380 - Commerce, communications & transportation
3
200 - Religion
2
300 - Social sciences
2
301 - Sociology & anthropology
2
400 - Language
2
000 - Computer science, information & general works
1
140 - Specific philosophical schools
1
320 - Political science
1
333 - Economics of land & energy
1
340 - Law
1
414 - Phonology & phonetics
1
530 - Physics
1
600 - Technology
1
610 - Medicine & health
1
620 - Engineering & allied operations
1
720 - Architecture
1